Question

Viscous drag force depends on

• A. Size of body
• B. Velocity with which it moves
• C. Viscosity of fluid
• D. All of these

Answer 1

Answer: (D)

$F=\eta A\frac{V}{d}$
Where,
$F=$ Drag Force
$\eta =$ Viscosity of fluids
$A=$ Area $\propto$ size of body
$V=$ Velocity